Lichens
n. 地衣类；地衣（lichen的复数）
🗣️ 情景例句
He devoted his life to promoting world peace.
他一生致力于促进世界和平。
She was so happy that she shed tears of delight.
她因为太幸福了，所以喜极而泣。
How was your weekend?
你周末过得怎么样？